|
|
|
|
Joined: Jul 2011
Posts: 7
Member
|
OP
Member
Joined: Jul 2011
Posts: 7 |
I am connecting a voip circuit to a nortel pbx. PRI card does not have an rj48 plug on the front but terminates through the backplane and connects to the CSU via 9-pin connector. the new voip router is mounted on a rack across the room so I need to get the cable from the phone system extended over to the voip router. The cabling needs to be t1 crossover.
Here's what I think I need to do:
Cut 9-pin connector off end coming from PBX - i am going to bypass csu - and need to use t1 wiring scheme. cable coming out of router is t1 crossover. my question: is there a device I can use to connect the two cables together? there isn't enough slack in the pbx cable to connect directly into router. I think I need a modular extender plug that has t1 on one side and t1 crossover on the other but I don't think there is such a product so was looking for ideas to make one.
|
|
|
Visit Atcom to get started with your new business VoIP phone system ASAP
Turn up is quick, painless, and can often be done same day.
Let us show you how to do VoIP right, resulting in crystal clear call quality and easy-to-use features that make everyone happy!
Proudly serving Canada from coast to coast.
|
|
|
|
Joined: Dec 2002
Posts: 9,424 Likes: 1
Member
|
|
Member
Joined: Dec 2002
Posts: 9,424 Likes: 1 |
Take 2 8 pin jacks and wire them up as you need, DIY coupler.
Jeff Moss
Moss Communications
Computer Repair-Networking-Cabling
MBSWWYPBX, JGAE
|
|
|
|
|
Joined: Jan 2002
Posts: 2,328
Moderator-Comdial
|
|
Moderator-Comdial
Joined: Jan 2002
Posts: 2,328 |
You might look a little closer at that connector. It's probably a 15 pin!
|
|
|
|
|
Joined: May 2007
Posts: 5,058 Likes: 5
Moderator-1A2, Cabling
|
|
Moderator-1A2, Cabling
Joined: May 2007
Posts: 5,058 Likes: 5 |
Originally posted by jwooten:
You might look a little closer at that connector. It's probably a 15 pin! Absolutely!  It's a 15 pin. T1 & T on pins 1 & 3. R1 & R on pins 9 & 11. Sam
"Where are we going and why are we in this hand basket?"
|
|
|
|
|
Joined: Jul 2011
Posts: 7
Member
|
|
OP
Member
Joined: Jul 2011
Posts: 7 |
I think you are right on the 15 pin. Can I make this work if I am trying to provide t1 crossover cabling between devices? I think I have two options: 1) keep the csu in play and change the rj-48 that is currently connected to the smart jack to a t1 crossover configration. How would I do the pin outs on the rj48 jack? or 2) bypass the csu and make the cable coming out of the pbx backplane a t1 crossover but again how would I do the pinouts? Thank you.
|
|
|
|
|
Joined: Jan 2002
Posts: 2,328
Moderator-Comdial
|
|
Moderator-Comdial
Joined: Jan 2002
Posts: 2,328 |
You can use a standard 50 pin amp cable. You can do a search for Option 11c 1.5 Mb DTI/PRI and you'll find the pinouts therein.
|
|
|
|
|
Joined: May 2007
Posts: 5,058 Likes: 5
Moderator-1A2, Cabling
|
|
Moderator-1A2, Cabling
Joined: May 2007
Posts: 5,058 Likes: 5 |
On an RJ 48X ReceiveT/R is 1 & 2 and Transmit T/R is 5/4
Sam
"Where are we going and why are we in this hand basket?"
|
|
|
|
|
Joined: Jul 2011
Posts: 7
Member
|
|
OP
Member
Joined: Jul 2011
Posts: 7 |
OK - I think I'm getting closer. I did some research on the Kentrox CSU. The current CSU has the 15-pin going to the network. It also looks like there is an adapter that will allow an RJ-48 Plug so then I can connect a cable directly from the network interface/router to the CSU and that cable would be the T-1 crossover. Make sense? Does anyone know Kentrox well enough to know if this will work and what the difference between the Rj-48 Plug and RJ-48 adapter is?
THANKS FOR ALL THE HELP.
|
|
|
|
Forums84
Topics94,297
Posts638,867
Members49,769
| |
Most Online5,661
May 23rd, 2018
|
|
|
2 members (Toner, justbill),
132
guests, and
344
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
|
|
|
